;+
;
; @file_comments
; Allows to reattribute global variables associated with a field
; when we give a structure created by <pro>saveatt</pro> by example.
;
; @categories
; Utilities
;
; @param STRUCT {in}{required}
; a structure like the one who read <pro>litchamp</pro>.
;
; @uses
; <pro>common</pro>
;
; @restrictions
; Change the value if global variables attribute of a field: vargrid,
; varname, varunit, vardate, varexp, valmask and time.
;
; @history
; Sebastien Masson (smasson\@lodyc.jussieu.fr)
;                       15/6/1999
;
; @version
; $Id$
;
;-
PRO restoreatt, struct
;
  compile_opt idl2, strictarrsubs
;
@common
;------------------------------------------------------------
   nomelements = tag_names(struct)
   for i = 0, n_tags(struct)-1 do begin
      case strlowcase(strmid(nomelements[i], 0, 1)) of
         'g':vargrid = strupcase(struct.(i))
         'n':varname = struct.(i)
         'u':varunit = struct.(i)
         'e':varexp = struct.(i)
         'm':valmask = struct.(i)
         'd':BEGIN
            if size(struct.(i),/type) EQ 7 THEN BEGIN
               vardate = struct.(i)
            ENDIF ELSE BEGIN
               vardate =  'time series'
               time = struct.(i)
            ENDELSE
         end
         ELSE:BEGIN
            ras = report('Le nom '+nomelements[i]+' ne correspont a aucun element reconnu de la structure. !C cf. IDL> xhelp, ''litchamp''')
         end
      endcase
   endfor
;------------------------------------------------------------
   return
end